diff options
| author | Jens Axboe <axboe@kernel.dk> | 2021-02-18 05:05:41 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-02-22 01:25:22 +0100 |
| commit | 843bbfd49f02caab7186910480a86378bb84e975 (patch) | |
| tree | b3004422b8d259e74b8ec2f345af9d42866955a3 /fs | |
| parent | io-wq: only remove worker from free_list, if it was there (diff) | |
| download | linux-843bbfd49f02caab7186910480a86378bb84e975.tar.xz linux-843bbfd49f02caab7186910480a86378bb84e975.zip | |
io-wq: make io_wq_fork_thread() available to other users
We want to use this in io_uring proper as well, for the SQPOLL thread.
Rename it from fork_thread() to io_wq_fork_thread(), and make it
available through the io-wq.h header.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/io-wq.c | 8 | ||||
| -rw-r--r-- | fs/io-wq.h | 2 |
2 files changed, 6 insertions, 4 deletions
diff --git a/fs/io-wq.c b/fs/io-wq.c index 3a506f1c7838..b0d09f60200b 100644 --- a/fs/io-wq.c +++ b/fs/io-wq.c @@ -592,7 +592,7 @@ static int task_thread_unbound(void *data) return task_thread(data, IO_WQ_ACCT_UNBOUND); } -static pid_t fork_thread(int (*fn)(void *), void *arg) +pid_t io_wq_fork_thread(int (*fn)(void *), void *arg) { unsigned long flags = CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD| CLONE_IO|SIGCHLD; @@ -622,9 +622,9 @@ static bool create_io_worker(struct io_wq *wq, struct io_wqe *wqe, int index) spin_lock_init(&worker->lock); if (index == IO_WQ_ACCT_BOUND) - pid = fork_thread(task_thread_bound, worker); + pid = io_wq_fork_thread(task_thread_bound, worker); else - pid = fork_thread(task_thread_unbound, worker); + pid = io_wq_fork_thread(task_thread_unbound, worker); if (pid < 0) { kfree(worker); return false; @@ -1012,7 +1012,7 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data) refcount_set(&wq->refs, 1); current->flags |= PF_IO_WORKER; - ret = fork_thread(io_wq_manager, wq); + ret = io_wq_fork_thread(io_wq_manager, wq); current->flags &= ~PF_IO_WORKER; if (ret >= 0) { wait_for_completion(&wq->done); diff --git a/fs/io-wq.h b/fs/io-wq.h index 584f0bd5a83d..23f6cbd620f8 100644 --- a/fs/io-wq.h +++ b/fs/io-wq.h @@ -106,6 +106,8 @@ void io_wq_destroy(struct io_wq *wq); void io_wq_enqueue(struct io_wq *wq, struct io_wq_work *work); void io_wq_hash_work(struct io_wq_work *work, void *val); +pid_t io_wq_fork_thread(int (*fn)(void *), void *arg); + static inline bool io_wq_is_hashed(struct io_wq_work *work) { return work->flags & IO_WQ_WORK_HASHED; |